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Author Topic: Ford Galaxy - Replacing the Run-On pump brushes, testing pump after replacing  (Read 770 times)

Offline fresh noun

  • *
  • Posts: 4
  • Thanked: 0
  • Model: Galaxy Mk2 Auto
  • Spec: 1.9 TDI 115 AUTO
  • Region: South East
  • Country: United Kingdom
If you want to test your pump after changing brushes while it is out of car then the terminal on the side with external rounded curve is the negative terminal (as shown in attached pictures), it is a 12v motor and I tested it using my wifi router's adopter.

Offline fresh noun

  • *
  • Posts: 4
  • Thanked: 0
  • Model: Galaxy Mk2 Auto
  • Spec: 1.9 TDI 115 AUTO
  • Region: South East
  • Country: United Kingdom
If you want to test your pump after changing brushes while it is out of car then the terminal on the side with external rounded curve is the negative terminal (as shown in attached pictures), it is a 12v motor and I tested it using my wifi router's adopter.

Also I used the cotton thread and tie it on the back side of the plate out of the motor to push the brushes in before putting the plate back in. I was not able to pull the thread out of the pump after closing as that was my actual plan. I had to pull the plate back a little and wiggle it around to move the thread out of the way as the pump was not working in the beginning.

Actually there is a rubber o ring around the plate to keep the motor water proof/resistant the rubber will make tight contact with walls of motor and will not let the thread come out at all.

May be if I had kept the plate a little out before pulling the thread out it might have fully came out, it is easily possible to keep the back plate out at least by 3mm while still keeping the brushes engaged in rite place.
May be if you oil the whole thread it might pull out easily. Or may be use some stronger thread but that might cut the rubber o ring (making it non water proof) while being pulled out.

See the thread information here https://www.fordmpv.com/smf2/ford-galaxy-common-faults-and-problems/galaxy-replacing-the-run-on-pump-brushes-(tdi-and-v6)/

Also there is a narrow channel already left in the wall that runs on the under side of brushes, this channel can be used easily for running your thread.

I have not tried opening the front side of the pump may be it is not that difficult if that can be done may be we can push the whole motor armature down a bit to engage in between the brushes and then slowly pushing the plate in while keeping the finger (with coin in between) on the other side to not let the armature quickly jump in due to magnetic force in this way we can avoid this whole business of threads.

Someone mentioned using water freeze method, I do not feel comfortable with that as this motor is intentionally made water proof. So freezing will leave some water inside the motor may be if we keep the plate up by 3mm or so and use hot air from hair drier ect. to make it dry etc.

If anyone has any other ideas then please share.

Offline fresh noun

  • *
  • Posts: 4
  • Thanked: 0
  • Model: Galaxy Mk2 Auto
  • Spec: 1.9 TDI 115 AUTO
  • Region: South East
  • Country: United Kingdom
Also I used the cotton thread and tie it on the back side of the plate out of the motor to push the brushes in before putting the plate back in. I was not able to pull the thread out of the pump after closing as that was my actual plan. I had to pull the plate back a little and wiggle it around to move the thread out of the way as the pump was not working in the beginning.

Actually there is a rubber o ring around the plate to keep the motor water proof/resistant the rubber will make tight contact with walls of motor and will not let the thread come out at all.

May be if I had kept the plate a little out before pulling the thread out it might have fully came out, it is easily possible to keep the back plate out at least by 3mm while still keeping the brushes engaged in rite place.
May be if you oil the whole thread it might pull out easily. Or may be use some stronger thread but that might cut the rubber o ring (making it non water proof) while being pulled out.

See the thread information here https://www.fordmpv.com/smf2/ford-galaxy-common-faults-and-problems/galaxy-replacing-the-run-on-pump-brushes-(tdi-and-v6)/

Also there is a narrow channel already left in the wall that runs on the under side of brushes, this channel can be used easily for running your thread.

I have not tried opening the front side of the pump may be it is not that difficult if that can be done may be we can push the whole motor armature down a bit to engage in between the brushes and then slowly pushing the plate in while keeping the finger (with coin in between) on the other side to not let the armature quickly jump in due to magnetic force in this way we can avoid this whole business of threads.

Someone mentioned using water freeze method, I do not feel comfortable with that as this motor is intentionally made water proof. So freezing will leave some water inside the motor may be if we keep the plate up by 3mm or so and use hot air from hair drier ect. to make it dry etc.

If anyone has any other ideas then please share.

Also there is one more problem with thread method that the thread that is left inside might get rounded on the armature hence can cause resistance in its motion. I think if the armature start turning while the thread is still engaged then we should forget about pulling the thread all together as the part of thread that is embedded between the wall of motor and rubber o ring might help keep it away from getting in the way of armature movement.

Offline mickeywis

  • *
  • Posts: 29
  • Thanked: 0
  • Model: Galaxy Mk2
  • Spec: 02 TDI Ghia X
  • Region: East Anglia
I did mine about 18 months ago using the `piece of thread` method. A fiddly but rewarding job for the sake of £2.99. I don`t think that all the thread came out when I`d finished mine, but a small piece of thread is not going to do any damage to an electric motor.

Offline daddyfixit

  • fixer of broken things
  • *
  • Posts: 102
  • Thanked: 7
  • Model: Galaxy Mk2
  • Spec: bog standard 90hp
  • Region: North West
  • Country: United Kingdom
done mine on Tuesday, fitted it today ----started car and tidied up, thought I heard booster going but no smoke ????   knelt down and reached underneath to feel exhaust on the heater-------stuck 3 fingers onto the exhaust & had to stick hand on a pile of icy sludge on wall next to me !!!  fcuk me it was hot !!

Offline gregers

  • *
  • Posts: 1712
  • Thanked: 12
  • Model: Transporter
  • Spec: vw t28 camper
  • First Name: greg
  • Region: East Midlands
  • Country: United Kingdom
daddyfixit,LOL.
when i had mine i used the 2mm drill bit method.
vw t5 camper van.
reality is for people with no imagination
rip dad 21/12/10
rip mum 3/5/16
rip bruv 11/5/17
The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline daddyfixit

  • fixer of broken things
  • *
  • Posts: 102
  • Thanked: 7
  • Model: Galaxy Mk2
  • Spec: bog standard 90hp
  • Region: North West
  • Country: United Kingdom
i have my original one off the car now, plus 2 x brushes--I will try the 2 drilled holes this time & a blob of silicon sealer on each hole when its working ?

 

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